Dump arguments values before start test

[la10736]

Dump arguments values before start test

[la10736]

Now we can trace input arguments:

Simple

#[rstest(trace)]
fn should_fail(fu32: u32, fstring: String, ftuple: (A, String, i32)) {
    assert!(false);
}

Exclude some inputs by notrace

#[rstest(trace::notrace(fa,fa2,fb))]
fn should_fail(fu32: u32, fa: A, fd: D, fa2: A, fb: B) {
    assert!(false);
}

In parametrized tests also

#[rstest_parametrize(u, s, t,
    case(42, "str", Unwrap(r#"("ss", -12)"#)),
    case(24, "trs", Unwrap(r#"("tt", -24)"#))
    ::trace
)]
fn should_fail(u: u32, s: &str, t: (&str, i32)) {
    assert!(false);
}

#[rstest_parametrize(u,a,d
    case(42, Unwrap("A{}"), Unwrap("D{}"))
    ::trace::notrace(a))
]
fn should_fail(u: u32, a: A, d: D) {
    assert!(false);
}